| Task: | jedan |
| Sender: | Kuha |
| Submission time: | 2016-08-02 16:21:46 +0300 |
| Language: | C++ |
| Status: | READY |
| Result: | 0 |
| group | verdict | score |
|---|---|---|
| #1 | WRONG ANSWER | 0 |
| test | verdict | time | |
|---|---|---|---|
| #1 | ACCEPTED | 0.05 s | details |
| #2 | ACCEPTED | 0.06 s | details |
| #3 | ACCEPTED | 0.06 s | details |
| #4 | ACCEPTED | 0.06 s | details |
| #5 | ACCEPTED | 0.06 s | details |
| #6 | WRONG ANSWER | 0.06 s | details |
| #7 | ACCEPTED | 0.05 s | details |
| #8 | ACCEPTED | 0.06 s | details |
| #9 | ACCEPTED | 0.06 s | details |
| #10 | ACCEPTED | 0.06 s | details |
| #11 | ACCEPTED | 0.05 s | details |
| #12 | ACCEPTED | 0.05 s | details |
| #13 | ACCEPTED | 0.05 s | details |
| #14 | ACCEPTED | 0.05 s | details |
| #15 | ACCEPTED | 0.06 s | details |
| #16 | ACCEPTED | 0.05 s | details |
| #17 | ACCEPTED | 0.07 s | details |
| #18 | ACCEPTED | 0.06 s | details |
| #19 | ACCEPTED | 0.05 s | details |
| #20 | ACCEPTED | 0.06 s | details |
| #21 | ACCEPTED | 0.06 s | details |
| #22 | ACCEPTED | 0.06 s | details |
| #23 | ACCEPTED | 0.06 s | details |
| #24 | ACCEPTED | 0.06 s | details |
| #25 | ACCEPTED | 0.06 s | details |
| #26 | ACCEPTED | 0.07 s | details |
| #27 | ACCEPTED | 0.08 s | details |
| #28 | ACCEPTED | 0.16 s | details |
| #29 | ACCEPTED | 0.17 s | details |
| #30 | ACCEPTED | 0.24 s | details |
| #31 | ACCEPTED | 0.26 s | details |
| #32 | ACCEPTED | 0.28 s | details |
| #33 | ACCEPTED | 0.25 s | details |
| #34 | ACCEPTED | 0.07 s | details |
| #35 | ACCEPTED | 0.10 s | details |
| #36 | ACCEPTED | 0.14 s | details |
| #37 | ACCEPTED | 0.17 s | details |
| #38 | ACCEPTED | 0.25 s | details |
Code
#include <bits/stdc++.h>
#define ll long long
#define INF 999999999
#define LINF 999999999999999999LL
#define N (1<<20)
#define M 1000000007
using namespace std;
int mi[10001];
int ma[10001];
ll dp[10000][2];
int main () {
int n;
cin>>n;
for (int i = 0; i < n; i++) {
mi[i] = 0;
ma[i] = n - n / 2 - min(abs(i - n / 2), abs(i - (n - 1) / 2)) - 1;
}
for (int i = 0; i < n; i++) {
int x;
cin>>x;
if (x == -1) continue;
mi[i] = x;
ma[i] = x;
}
int c = 0;
for (int i = 0; i < n; i++) {
c = max(c - 1, mi[i]);
mi[i] = max(c, mi[i]);
}
for (int i = n - 1; i >= 0; i--) {
c = max(c - 1, mi[i]);
mi[i] = max(c, mi[i]);
}
c = 0;
for (int i = 0; i < n; i++) {
c = min(c + 1, ma[i]);
ma[i] = min(c, ma[i]);
}
for (int i = n - 1; i >= 0; i--) {
c = min(c + 1, ma[i]);
ma[i] = min(c, ma[i]);
}
for (int i = 0; i < n; i++) {
if (mi[i] > ma[i]) cout<<0<<endl, exit(0);
}
dp[0][0] = 1;
for (int x = 1; x < n; x++) {
for (int y = mi[x]; y <= ma[x]; y++) {
dp[y][1] += (dp[y + 1][0] + dp[y][0]) % M;
if (y) dp[y][1] = (dp[y][1] + dp[y - 1][0]) % M;
}
for (int y = max(mi[x] - 1, 0); y <= ma[x] + 1; y++) {
dp[y][0] = dp[y][1];
}
for (int y = max(mi[x] - 2, 0); y <= ma[x] + 2; y++) dp[y][1] = 0;
}
cout<<dp[0][0]<<endl;
}Test details
Test 1
Verdict: ACCEPTED
| input |
|---|
| 3
-1 2 -1 |
| correct output |
|---|
| 0 |
| user output |
|---|
| 0 |
Test 2
Verdict: ACCEPTED
| input |
|---|
| 3
-1 -1 -1 |
| correct output |
|---|
| 2 |
| user output |
|---|
| 2 |
Test 3
Verdict: ACCEPTED
| input |
|---|
| 6
-1 -1 -1 2 -1 -1 |
| correct output |
|---|
| 3 |
| user output |
|---|
| 3 |
Test 4
Verdict: ACCEPTED
| input |
|---|
| 1
-1 |
| correct output |
|---|
| 1 |
| user output |
|---|
| 1 |
Test 5
Verdict: ACCEPTED
| input |
|---|
| 1
0 |
| correct output |
|---|
| 1 |
| user output |
|---|
| 1 |
Test 6
Verdict: WRONG ANSWER
| input |
|---|
| 1
1 |
| correct output |
|---|
| 0 |
| user output |
|---|
| 1 |
Test 7
Verdict: ACCEPTED
| input |
|---|
| 15
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 113634 |
| user output |
|---|
| 113634 |
Test 8
Verdict: ACCEPTED
| input |
|---|
| 30
-1 -1 -1 -1 -1 -1 -1 -1 7 -1 -... |
| correct output |
|---|
| 33792 |
| user output |
|---|
| 33792 |
Test 9
Verdict: ACCEPTED
| input |
|---|
| 40
-1 -1 -1 -1 -1 -1 -1 6 -1 -1 -... |
| correct output |
|---|
| 44058168 |
| user output |
|---|
| 44058168 |
Test 10
Verdict: ACCEPTED
| input |
|---|
| 50
-1 -1 -1 -1 4 -1 -1 -1 -1 -1 -... |
| correct output |
|---|
| 885261321 |
| user output |
|---|
| 885261321 |
Test 11
Verdict: ACCEPTED
| input |
|---|
| 100
-1 -1 -1 -1 -1 -1 -1 -1 7 -1 -... |
| correct output |
|---|
| 630105363 |
| user output |
|---|
| 630105363 |
Test 12
Verdict: ACCEPTED
| input |
|---|
| 200
0 -1 -1 -1 4 -1 -1 -1 -1 0 -1 ... |
| correct output |
|---|
| 584749136 |
| user output |
|---|
| 584749136 |
Test 13
Verdict: ACCEPTED
| input |
|---|
| 300
-1 -1 0 -1 -1 -1 -1 -1 -1 -1 -... |
| correct output |
|---|
| 440962689 |
| user output |
|---|
| 440962689 |
Test 14
Verdict: ACCEPTED
| input |
|---|
| 500
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 861085225 |
| user output |
|---|
| 861085225 |
Test 15
Verdict: ACCEPTED
| input |
|---|
| 499
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 686858355 |
| user output |
|---|
| 686858355 |
Test 16
Verdict: ACCEPTED
| input |
|---|
| 500
0 0 -1 -1 -1 3 -1 -1 -1 6 6 -1... |
| correct output |
|---|
| 287620623 |
| user output |
|---|
| 287620623 |
Test 17
Verdict: ACCEPTED
| input |
|---|
| 500
0 -1 -1 1 -1 0 -1 0 -1 -1 3 -1... |
| correct output |
|---|
| 132437565 |
| user output |
|---|
| 132437565 |
Test 18
Verdict: ACCEPTED
| input |
|---|
| 500
0 -1 1 -1 2 2 -1 4 -1 -1 -1 1 ... |
| correct output |
|---|
| 545015067 |
| user output |
|---|
| 545015067 |
Test 19
Verdict: ACCEPTED
| input |
|---|
| 500
-1 1 1 -1 1 -1 1 -1 -1 1 -1 -1... |
| correct output |
|---|
| 394701022 |
| user output |
|---|
| 394701022 |
Test 20
Verdict: ACCEPTED
| input |
|---|
| 500
0 -1 -1 2 -1 -1 -1 -1 -1 -1 -1... |
| correct output |
|---|
| 287409105 |
| user output |
|---|
| 287409105 |
Test 21
Verdict: ACCEPTED
| input |
|---|
| 500
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -... |
| correct output |
|---|
| 455719894 |
| user output |
|---|
| 455719894 |
Test 22
Verdict: ACCEPTED
| input |
|---|
| 500
-1 1 -1 -1 -1 -1 -1 -1 -1 -1 -... |
| correct output |
|---|
| 174226870 |
| user output |
|---|
| 174226870 |
Test 23
Verdict: ACCEPTED
| input |
|---|
| 500
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 861085225 |
| user output |
|---|
| 861085225 |
Test 24
Verdict: ACCEPTED
| input |
|---|
| 1000
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 812718674 |
| user output |
|---|
| 812718674 |
Test 25
Verdict: ACCEPTED
| input |
|---|
| 2000
-1 1 -1 -1 -1 -1 -1 -1 -1 -1 -... |
| correct output |
|---|
| 93994771 |
| user output |
|---|
| 93994771 |
Test 26
Verdict: ACCEPTED
| input |
|---|
| 3000
-1 0 -1 -1 -1 -1 -1 -1 -1 -1 -... |
| correct output |
|---|
| 335231082 |
| user output |
|---|
| 335231082 |
Test 27
Verdict: ACCEPTED
| input |
|---|
| 5000
0 -1 2 -1 1 2 -1 -1 5 -1 -1 7 ... |
| correct output |
|---|
| 799295101 |
| user output |
|---|
| 799295101 |
Test 28
Verdict: ACCEPTED
| input |
|---|
| 7000
0 -1 0 0 -1 0 -1 1 0 1 0 0 -1 ... |
| correct output |
|---|
| 436287141 |
| user output |
|---|
| 436287141 |
Test 29
Verdict: ACCEPTED
| input |
|---|
| 8000
0 -1 1 -1 3 -1 1 -1 1 0 -1 -1 ... |
| correct output |
|---|
| 88524447 |
| user output |
|---|
| 88524447 |
Test 30
Verdict: ACCEPTED
| input |
|---|
| 10000
0 0 1 -1 -1 3 2 -1 3 -1 4 -1 5... |
| correct output |
|---|
| 129950957 |
| user output |
|---|
| 129950957 |
Test 31
Verdict: ACCEPTED
| input |
|---|
| 10000
-1 0 -1 -1 3 2 -1 -1 -1 -1 1 -... |
| correct output |
|---|
| 598246902 |
| user output |
|---|
| 598246902 |
Test 32
Verdict: ACCEPTED
| input |
|---|
| 10000
-1 1 0 -1 2 1 -1 1 -1 0 -1 -1 ... |
| correct output |
|---|
| 105842640 |
| user output |
|---|
| 105842640 |
Test 33
Verdict: ACCEPTED
| input |
|---|
| 10000
0 -1 0 -1 -1 -1 4 3 -1 -1 -1 -... |
| correct output |
|---|
| 133310608 |
| user output |
|---|
| 133310608 |
Test 34
Verdict: ACCEPTED
| input |
|---|
| 10000
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 484205143 |
| user output |
|---|
| 484205143 |
Test 35
Verdict: ACCEPTED
| input |
|---|
| 10000
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 904817827 |
| user output |
|---|
| 904817827 |
Test 36
Verdict: ACCEPTED
| input |
|---|
| 10000
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 966971895 |
| user output |
|---|
| 966971895 |
Test 37
Verdict: ACCEPTED
| input |
|---|
| 10000
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 664825423 |
| user output |
|---|
| 664825423 |
Test 38
Verdict: ACCEPTED
| input |
|---|
| 10000
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ... |
| correct output |
|---|
| 681928184 |
| user output |
|---|
| 681928184 |
